Package org.bitcoinj.store

Class MemoryBlockStore

java.lang.Object

org.bitcoinj.store.MemoryBlockStore

All Implemented Interfaces:

BlockStore

public class MemoryBlockStore
extends Object
implements BlockStore

Keeps StoredBlocks in memory. Used primarily for unit testing.

Constructor Summary

Constructors

Constructor	Description
MemoryBlockStore(Block genesisBlock)

Method Summary

Modifier and Type	Method	Description
void	close()	Closes the store.
StoredBlock	get(Sha256Hash hash)	Returns the StoredBlock given a hash.
StoredBlock	getChainHead()	Returns the StoredBlock that represents the top of the chain of greatest total work.
final void	put(StoredBlock block)	Saves the given block header+extra data.
final void	setChainHead(StoredBlock chainHead)	Sets the StoredBlock that represents the top of the chain of greatest total work.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

MemoryBlockStore

public MemoryBlockStore(Block genesisBlock)

Method Details

put

public final void put(StoredBlock block)
               throws BlockStoreException

Description copied from interface: BlockStore

Saves the given block header+extra data. The key isn't specified explicitly as it can be calculated from the StoredBlock directly. Can throw if there is a problem with the underlying storage layer such as running out of disk space.

Specified by:

put in interface BlockStore

Throws:

BlockStoreException

get

public StoredBlock get(Sha256Hash hash)
                throws BlockStoreException

Description copied from interface: BlockStore

Returns the StoredBlock given a hash. The returned values block.getHash() method will be equal to the parameter. If no such block is found, returns null.

Specified by:

get in interface BlockStore

Throws:

BlockStoreException

getChainHead

public StoredBlock getChainHead()
                         throws BlockStoreException

Description copied from interface: BlockStore

Returns the StoredBlock that represents the top of the chain of greatest total work. Note that this can be arbitrarily expensive, you probably should use AbstractBlockChain.getChainHead() or perhaps AbstractBlockChain.getBestChainHeight() which will run in constant time and not take any heavyweight locks.

Specified by:

getChainHead in interface BlockStore

Throws:

BlockStoreException

setChainHead

public final void setChainHead(StoredBlock chainHead)
                        throws BlockStoreException

Description copied from interface: BlockStore

Sets the StoredBlock that represents the top of the chain of greatest total work.

Specified by:

setChainHead in interface BlockStore

Throws:

BlockStoreException

close

public void close()

Description copied from interface: BlockStore

Closes the store.

Specified by:

close in interface BlockStore